CVE-2026-55957

HighCVSS 7.3

Published: 29/06/2026(UTC)Updated: 02/07/2026(UTC)Translated: 03/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.43%

35th percentile — higher than 35% of all known CVEs

Summary

A missing critical step in authentication was found in Apache Tomcat's JNDIRealm when configured to use GSSAPI. Attackers can authenticate without providing the correct password.

Risk Assessment

The risk involves potential unauthorized access to applications using JNDIRealm authentication with GSSAPI, leading to data confidentiality and integrity breaches.

Recommendation

It is recommended to upgrade Apache Tomcat to version 11.0.5, 10.1.37, or 9.0.101, which fix this vulnerability.

Original NVD description (English source)

Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.4, from 10.1.0-M1 through 10.1.36, from 9.0.0.M1 through 9.0.100, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.5, 10.1.37 or 9.0.101, which fixes the issue.